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Put the sentences into negative forms.
Example:He has already come.
He hasn`t come yet.
1 Ann has just watered the flowers.
2 Mum has already gone to her work.
3 I have already seen this film.
4 We have just taken the bus.
5 Bob has just entered the shop.
6 They have already read this book.
7 The children have made a present for their mother.